Subject
- Injections1
- Insect pests1
- Insecticides3
- Insects1
- Institut Pasteur (Paris, France)2
- International Business Machines Corporation1
- Jābir ibn Ḥayyān1
- Jewelry1
- Jewish Hospital of St. Louis2
- Johns Hopkins University1
- Karl, Irene E. Dr., 1915-20061
- Laboratories16
- Laboratories--Equipment and supplies1
- Laboratory animals2
- Lagleize, Ferdinand1
- Lavoisier, Antoine Laurent, 1743-17941
- Lavoisier, Marie-Anne-Pierrette, 1758-18361
- Lead1
- Lead--Testing1
- Leeches2